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Ground control products for coal and hard rock mining, tunneling, and civil construction.

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  • GLOBAL HEADQUARTERS258 Kappa Drive

    Pittsburgh, PA 15238

    www.jennmar.com (412) 963-9071

    S E L E C T E D

    G R O U N D C O N T R O L P R O D U C T SCoal and Hard Rock Mining Tunneling

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    JENNMAR is a global, family-owned company that is leading the way in ground control technology for the coal & hard rock mining and tunneling industries. For more than 40 years, our mission has been focused on developing and

    manufacturing quality ground control products. Today, JENNMAR makes a broad range of reliable products, from bolts and beams, to channels and trusses, to resin and rebar. Were proud to make products that make the industries we serve safer and more efficient. And with more than twenty manufacturing plants around the world and a network of affiliates, were positioned to react to ground control needs anywhere, anytime.

    A Single Source ProviderJENNMARs network of affiliates includes engineering services, resin manufacturing, rolled-steel and drill-steel manufacturing, custom steel fabrication, chemical roof support and sealing products, and even includes staffing solutions and our own trucking company. This ability to provide a complete range of complementary products and services ensures quality, efficiency and availability resulting in reduced costs, reduced lead times and increased customer satisfaction.

    JENNMAR continues to grow, but our focus will always be on the customer. We feel it is essential to develop a close working relationship with every customer so we can understand their unique challenges and ensure superior customer service.

    Our commitment to the customer is guided by three words; SAFETY, SERVICE and INNOVATION. Its these words that form the foundation of our business. Its who we are.

    SAFETY.SERVICE. INNOVATION.

    Welcome to JENNMAR

    WATCHTHE

    VIDEO

    Frank Calandra, Jr. President

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    Industry Affiliates

    Our network of industry affiliates ensures quality, efficiency and availability providing complementary products and engineering solutions. This gives our customers a complete resource for all their ground control requirements, not to mention reduced costs and lead time!

    J-LOK Resins www.j-lok.com 412-963-9071

    J-LOK manufactures state-of-the-art resin anchorage systems that are designed to complement JENNMAR products and provide an optimum bolt and resin system.

    JM Steel www.jm-steel.com 843-336-4929

    JM Steel provides a variety of flat rolled steel products including master coils, slit coils, blanks, beams, sheets, flat bars and panels.

    JENNCHEM www.jennchem.com 413-963-9071

    JENNCHEM designs and delivers chemical roof support, rock stabilization and ventilation sealing products to the mining and underground construction industries.

    JENNMAR Civil www.jennmarcivil.com 412-963-9071

    JENNMAR Civil provides products and services to the tunneling industry, including rock support bolts, anchoring systems, liner plate and resins.

    KMS www.keystonemining.com 412-963-9071

    KMS (Keystone Mining Services) provides advanced engineering services such as structural analysis, numerical modeling and 3-D modeling, and is responsible for conducting research and development of new products and improvements.

    JENNMAR McSweeney www.mcsweeneysinc.com 740-377-3354

    JENNMAR McSweeney is a leading manufacturer of forged drill steel for use use in the underground mining industry, as well as snow plow and road grader blades and railroad products.

    JENNMAR Specialty Products www.jennmarspecialty.com 276-964-2107

    JENNMAR Specialty Products provides custom steel fabrication services to the mining, tunneling industries.

    JENNMAR SanShell 304-465-0651

    JENNMAR SanShell manufactures roof bits and continuous miner bits for the mining industry as well as specific bits for construction and metal cutting.

    TungsteMet 304-469-4721

    TungsteMet manufactures standard and custom-molded carbide products for many different industries.

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    Table of Contents

    PRIMARY ROOF/RIB SUPPORT & ROCK REINFORCEMENT

    Cable Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

    Bolt Markings Cable Bolts. . . . . . . . . . . . . . . . . . 12

    Bolt Head Markings & Recommended Torque . . . . . 13

    CABLE-LOK Shell . . . . . . . . . . . . . . . . . . . . . . . . . 14

    Conventional Bolts . . . . . . . . . . . . . . . . . . . . . . . . 15

    Combination Bolt System. . . . . . . . . . . . . . . . . . . . 17

    Headed Rebar Bolts . . . . . . . . . . . . . . . . . . . . . . . 19

    Tensioned Rebar Bolts. . . . . . . . . . . . . . . . . . . . . . 20

    TT Anti-Friction Washer. . . . . . . . . . . . . . . . . . . . . 21

    INSTL Bolt Anchor System . . . . . . . . . . . . . . . . . 22

    Fully Grouted INSTL Bolt Anchor System . . . . . . . 24

    JENN-TENSION. . . . . . . . . . . . . . . . . . . . . . . . . . 25

    Truss Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

    Cuttable & Corrosion Resistant Products . . . . . . . . . 28

    JM Thread Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

    Bendable Bolts. . . . . . . . . . . . . . . . . . . . . . . . . . . 31

    FRICTION-LOK Stabilizer System . . . . . . . . . . . . . 32

    FRICTION-LOK - Self Drilling . . . . . . . . . . . . . . . . 33

    PYTHON Expandable Rock Bolts . . . . . . . . . . . . . 34

    YIELD-LOK Bolt. . . . . . . . . . . . . . . . . . . . . . . . . . . 35

    Fast Anchor Bolt System . . . . . . . . . . . . . . . . . . . 36

    Fast Anchor 2 Bolt System . . . . . . . . . . . . . . . . . . 37

    Self-Drilling Hollow Bar Anchor System . . . . . . . . . . 38

    SAFEROCK System . . . . . . . . . . . . . . . . . . . . . . . 40

    Umbrella Tubes Concentric Drilling System . . . . . . . 41

    STANDING SUPPORT

    Rapid Installation Prop (RIP) . . . . . . . . . . . . . . . . . 42

    J-SAND & J-SANDY Yieldable Prop. . . . . . . . . . . 43

    Omni 150 Water Prop . . . . . . . . . . . . . . . . . . . . . 44

    THN Arch System. . . . . . . . . . . . . . . . . . . . . . . . . 45

    Impact Resistant Lagging (IRL) . . . . . . . . . . . . . . . 46

    Lattice Girders . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

    Steel Sets and Tunnel/Shaft Rings. . . . . . . . . . . . . . 48

    VENTILATION CONTROL

    Overcast System . . . . . . . . . . . . . . . . . . . . . . . . . 49

    JENNMAR Metal Stoppings . . . . . . . . . . . . . . . . . 50

    SURFACE/SKIN SUPPORT & ACCESSORIES

    Channels, Mats, Beams, Mesh . . . . . . . . . . . . . . . . 51

    Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

    Belt Hangers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

    Rail Ties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

    Galvanized & Coated Products . . . . . . . . . . . . . . . 58

    LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

    DISCLAIMER: Contents of JENNMAR publications are provided for informational purposes only. Nominal values for technical data are provided. For site specific product information, contact your JENNMAR representative. While every effort has been made to ensure accuracy of these publications, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by JENNMAR terms and conditions. We reserve the right to modify or improve the designs or specifications of such products at any time without notice. Not all products available in all areas.

    2015 JENNMAR, All Rights Reserved.

    NOTE: Please confirm that you are using the latest version of this catalog. All updates and revisions to JENNMAR publications are available at jennmar.com and should be verified before using any of the technical data contained therein.

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    Since 1995, the JENNMAR line of cable bolts has progressed from the initial introduction of a resin point anchored, non-tensioned cable bolt through tensioned cable bolts to todays fully grouted cable bolt. The multi-bulb technology offers excellent anchorage in resins or grouts. The number, spacing, and diameter can be adjusted for individual customer needs. With J-LOK resins and JENNCHEM grouts and pumpable resins, a fully customized installation can be provided.

    About Our Cable Bolts

    Technical Data Bright Cable

    0.6 in. (15 mm) CABLE BOLT 0.7 in. (18 mm) CABLE BOLT

    CABLE DESCRIPTION* Uncoated 7 strand low relaxation strandGRADE 270K 270,000 psi (1862 MPa) ultimate strengthULTIMATE STRENGTH, MINIMUM 58,600 lb (261 kN) 79,400 lb (353 kN)LOAD @ 1% EXTENSION, MINIMUM 52,740 lb (235 kN) 71,500 lb (318 kN)ELONGATION, MINIMUM 3.5%SPECIFICATION ASTM A416*Galvanized cable also available

    Dimensions Bright Cable

    0.6 in. (15 mm) CABLE BOLT 0.7 in. (18 mm) CABLE BOLT

    STRAND DIAMETER (A) 0.600 in. (15 mm) 0.700 in. (18 mm)BULB SIZE

    1 in. (25 mm) BOREHOLE, MINIMUM 0.813 in. (21 mm) 0.813 in. (21 mm)1 in. (25 mm) BOREHOLE, MAXIMUM 0.995 in. (25 mm) 0.995 in. (25 mm)1-3/8 in. (35 mm) BOREHOLE, MINIMUM 1.000 in. (25 mm) 1.000 in. (25 mm)1-3/8 in. (35 mm) BOREHOLE, MAXIMUM 1.500 in. (38 mm) 1.500 in. (38 mm)

    INSTALLATION

    LENGTH AS SPECIFIED

    LENGTH AS SPECIFIED

    BULB SPACING AS SPECIFIED

    BULB SIZE AS SPECIFIED

    For use in low-seam applications, specially designed low-pofile cable bolt heads are available for all cable bolts.

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